../ dmsp_15_ephemeris_20131002.txt 22-Jun-2023 00:23 109514 dmsp_16_ephemeris_20131002.txt 22-Jun-2023 00:23 109620 dmsp_17_ephemeris_20131002.txt 22-Jun-2023 00:23 109695 dmsp_18_ephemeris_20131002.txt 22-Jun-2023 00:23 109550